Positioning device for processing circuit board

Abstract

The utility model discloses a positioning device for circuit board processing relates to positioning device technical field, including fixed bolster, both sides of fixed bolster all are fixed with mounting bracket, the top of fixed bolster is fixed with circuit board placing table, this device sets up the centering positioning mechanism, and the both sides centering positioning frame are driven to the same speed and the intensity and are clamped to center line simultaneously, realized high accuracy's synchronous centering positioning and locking, ensure the accuracy of processing position, realized the automation synchronous clamping, and one operation can complete fixed, reduces the situation of manual regulation, and the feeding time is greatly shortened, through being provided with the guide mechanism, when the centering positioning frame moves horizontally under the driving of connecting rod, make the moving track of centering positioning frame more stable and stable, guarantee the repeat consistency of clamping positioning, ensure that centering positioning frame moves stably when circuit board positioning.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, specifically a positioning device for circuit board processing. Background Technology

[0002] Circuit boards (PCBs) are one of the core components of the electronics industry. They are made of insulating materials as substrates, and conductive patterns (wires, pads, etc.) are made on their surface through specific processes. They are used to carry various electronic components (such as chips, resistors, and capacitors) and provide them with electrical connections and mechanical support. The positioning device used in PCB manufacturing is a tooling equipment used to fix and accurately align the PCB during the manufacturing process. Its core function is to ensure that the PCB maintains a stable and accurate position during processing steps such as soldering, drilling, and cutting, thereby ensuring processing accuracy and quality.

[0003] For example, Chinese Patent Application No. 202322937389.X discloses a positioning device for circuit board processing, including a work frame. Support plates are fixedly installed around the bottom of the work frame, and first connecting plates are fixedly installed on both sides of the top of the work frame. When this device is placed in a circuit board processing machine, the position of the moving frame is adjusted by a second electric push rod and a vacuum pump. Then, a vacuum suction cup adheres to the inner wall of the processing machine, allowing the operator to adjust the device according to the width of the processing machine, thus improving its practicality. The first electric push rod clamps the circuit board, and a second laser pointer, a third electric push rod, and the first laser pointer provide auxiliary illumination of the center position and processing structure of the circuit board, reducing errors in circuit board processing and improving the quality of circuit board processing.

[0004] However, the aforementioned positioning device is difficult to center during use, which may cause the circuit board to shift during clamping, affecting the accuracy of circuit board processing. Sometimes, manual adjustment is required, impacting positioning efficiency. Therefore, those skilled in the art have provided a positioning device for circuit board processing to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a positioning device for circuit board processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A positioning device for circuit board processing includes a fixed bracket, mounting frames fixed on both sides of the fixed bracket, a circuit board placement platform fixed on the top of the fixed bracket, a centering and positioning mechanism installed at the bottom of the fixed bracket, and a guide mechanism fixed on the side of the mounting frame away from the fixed bracket. The centering and positioning mechanism includes an electric push rod. One end of the output shaft of the electric push rod is fixed to a movable frame. Inside the movable frame, two metal rods are rotatably connected via a rotating shaft. The ends of the metal rods away from the movable frame are rotatably connected to a movable bracket via a rotating shaft. A connecting plate is fixed to the top of the movable bracket. A connecting bracket is installed on the top of the connecting plate. A transmission frame is rotatably connected to the top of the connecting bracket via a rotating shaft. One end of the transmission frame is rotatably connected to a rotating frame via a rotating shaft. One end of the rotating frame is rotatably connected to a centering and positioning frame via a rotating shaft.

[0007] As an improvement of this utility model: a guide sleeve is fixed to the top of the movable bracket, and a guide rail is installed at the bottom of the fixed bracket.

[0008] As an improvement of this utility model: the guide sleeve and the guide rail are sliding fit components, and the electric push rod and the fixed bracket are fixedly connected.

[0009] As an improvement of this utility model: the guiding mechanism includes a metal bracket, the top of the metal bracket is rotatably connected to a rotating frame via a rotating shaft, a limiting sleeve is fixed to the top of the metal bracket, a limiting hole is opened inside the limiting sleeve, and a limiting rod is fixed to the side of the centering positioning frame near the limiting sleeve.

[0010] As an improvement of this utility model: one end of the rotating frame is rotatably connected to the transmission frame via a rotating shaft, and the metal bracket and the mounting frame are fixedly connected.

[0011] As an improvement of this utility model: the size of the limiting hole is adapted to the size of the limiting rod, and the mounting bracket has a threaded hole inside.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This device is equipped with a centering and positioning mechanism, which drives the centering and positioning frames on both sides to clamp towards the center line at the same speed and force. This design eliminates the circuit board offset caused by uneven force on one side. This ensures that the circuit board will not offset due to force on one side when it is positioned, and achieves high-precision synchronous centering, positioning and locking, ensuring the accuracy of the processing position. It realizes automated synchronous clamping, and the fixing can be completed in one operation, reducing the need for manual adjustment and greatly shortening the loading and unloading time. 2. With the addition of a guide mechanism, when the centering positioning frame moves horizontally under the drive of the connecting rod, the limiting rod will simultaneously insert into or pass through the limiting hole opened on the limiting sleeve. This structure forms a sliding pair to prevent the centering positioning frame from shaking or tilting. This makes the movement trajectory of the centering positioning frame more stable and smooth, ensuring the repeatability and consistency of clamping and positioning, and ensuring that the centering positioning frame moves smoothly when positioning circuit boards. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a schematic diagram of the centering and positioning mechanism in this utility model; Figure 5 for Figure 1 A magnified diagram of region A.

[0014] In the diagram: 1. Fixed bracket; 2. Mounting bracket; 3. Circuit board placement platform; 4. Centering and positioning mechanism; 41. Electric push rod; 42. Moving frame; 43. Metal rod; 44. Moving bracket; 45. Connecting plate; 46. Connecting bracket; 47. Transmission frame; 48. Rotating frame; 49. Centering and positioning frame; 410. Guide sleeve; 411. Guide rail; 5. Guide mechanism; 51. Metal bracket; 52. Rotating frame; 53. Limiting sleeve; 54. Limiting hole; 55. Limiting rod. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below with reference to specific embodiments: First Embodiment Please see Figures 1-5 A positioning device for circuit board processing includes a fixed bracket 1, mounting brackets 2 fixed on both sides of the fixed bracket 1, a circuit board placement platform 3 fixed on the top of the fixed bracket 1, a centering and positioning mechanism 4 installed at the bottom of the fixed bracket 1, and a guide mechanism 5 fixed on the side of the mounting bracket 2 away from the fixed bracket 1. The centering and positioning mechanism 4 includes an electric push rod 41. One end of the output shaft of the electric push rod 41 is fixed to a movable frame 42. Inside the movable frame 42, two metal rods 43 are rotatably connected via a rotating shaft. The end of the metal rods 43 away from the movable frame 42 is rotatably connected to a movable bracket 44 via a rotating shaft. A connecting plate 45 is fixed to the top of the movable bracket 44. A connecting bracket 46 is installed on the top of the connecting plate 45. A transmission frame 47 is rotatably connected to the top of the connecting bracket 46 via a rotating shaft. One end of the transmission frame 47 is rotatably connected to a rotating frame 48 via a rotating shaft. One end of the rotating frame 48 is rotatably connected to a centering and positioning frame 49 via a rotating shaft. A guide sleeve 410 is fixed to the top of the movable bracket 44. A guide rail 411 is installed at the bottom of the fixed bracket 1. The guide sleeve 410 and the guide rail 411 are sliding fit components. The electric push rod 41 and the fixed bracket 1 are fixedly connected.

[0016] With the above settings, when positioning the circuit board during processing, the circuit board to be positioned is placed on the circuit board placement platform 3. Then, the electric push rod 41 is activated, and the output shaft of the electric push rod 41 drives the moving frame 42 to move horizontally. The moving frame 42 drives one end of the metal rod 43 to move, and the other end of the metal rod 43 drives the moving bracket 44 and the guide sleeve 410 to move simultaneously. The guide sleeve 410 slides outside the guide rail 411, which plays a guiding role. The two moving brackets 44 move synchronously in opposite directions. The moving brackets 44 drive the connecting plate 45 and the connecting bracket 46 to move synchronously. When the connecting bracket 46 moves, it drives the rotating frame 48 to move through the transmission frame 47, so that the centering positioning frames 49 on both sides clamp towards the center with the same force.

[0017] In summary, driven by a single electric push rod 41, and transmitted through the moving frame 42, metal rod 43, and moving bracket 44, the moving brackets 44 on both sides are forced to move synchronously and in opposite directions under the sliding engagement of the guide sleeve 410 and the guide rail 411. This symmetrical driving mechanism ensures that the power is evenly distributed. Subsequently, the power is transmitted through the connecting plate 45 and the connecting bracket 46 to a linkage mechanism composed of a transmission frame 47 and a rotating frame 48, which ultimately drives the centering and positioning frames 49 on both sides to clamp towards the center line at the same speed and force. This design eliminates the circuit board offset caused by uneven force or force on one side, ensuring that the circuit board will not offset due to force on one side when positioned. It achieves high-precision synchronous centering and locking, ensuring the accuracy of the processing position, realizing automated synchronous clamping, and completing the fixing in one operation, reducing manual adjustment and significantly shortening the loading and unloading time.

[0018] Second Embodiment Please see Figures 1-5Based on the first embodiment, the guide mechanism 5 includes a metal bracket 51. The top of the metal bracket 51 is rotatably connected to a rotating frame 52 via a rotating shaft. A limit sleeve 53 is fixed to the top of the metal bracket 51. A limit hole 54 is opened inside the limit sleeve 53. A limit rod 55 is fixed to the side of the centering positioning frame 49 near the limit sleeve 53. One end of the rotating frame 52 is rotatably connected to the transmission frame 47 via a rotating shaft. The metal bracket 51 and the mounting frame 2 are fixedly connected. The size of the limit hole 54 is adapted to the size of the limit rod 55. A threaded hole is opened inside the mounting frame 2.

[0019] With the above configuration, when the connecting bracket 46 moves, it will drive one end of the rotating bracket 52 to rotate through the transmission bracket 47, and the other end of the transmission bracket 47 will drive the rotating bracket 48 to rotate, thereby allowing the centering positioning bracket 49 to move horizontally. When the centering positioning bracket 49 moves, it will also drive the limiting rod 55 to move horizontally, allowing the limiting rod 55 to move within the limiting hole 54 opened in the limiting sleeve 53, which plays a guiding and limiting role, ensuring that the centering positioning bracket 49 moves smoothly when positioning the circuit board.

[0020] In summary, when the centering and positioning frame 49 moves horizontally under the drive of the connecting rod, the limiting rod 55 will simultaneously insert into or pass through the limiting hole 54 opened on the limiting sleeve 53. This structure forms a sliding pair to prevent the centering and positioning frame 49 from shaking or tilting. This makes the movement trajectory of the centering and positioning frame 49 more stable and smooth, ensuring the repeatability and consistency of clamping and positioning.

[0021] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A positioning device for circuit board processing, comprising a fixed bracket (1), characterized in that, Mounting brackets (2) are fixed on both sides of the fixed bracket (1), a circuit board placement platform (3) is fixed on the top of the fixed bracket (1), a centering and positioning mechanism (4) is installed on the bottom of the fixed bracket (1), and a guide mechanism (5) is fixed on the side of the mounting bracket (2) away from the fixed bracket (1). The centering and positioning mechanism (4) includes an electric push rod (41). One end of the output shaft of the electric push rod (41) is fixed with a movable frame (42). Inside the movable frame (42), two metal rods (43) are rotatably connected via a rotating shaft. The end of the metal rod (43) away from the movable frame (42) is rotatably connected with a movable bracket (44) via a rotating shaft. A connecting plate (45) is fixed to the top of the movable bracket (44). A connecting bracket (46) is installed on the top of the connecting plate (45). A transmission frame (47) is rotatably connected to the top of the connecting bracket (46) via a rotating shaft. One end of the transmission frame (47) is rotatably connected with a rotating frame (48) via a rotating shaft. One end of the rotating frame (48) is rotatably connected with a centering and positioning frame (49) via a rotating shaft.

2. The positioning device for circuit board processing according to claim 1, characterized in that, The top of the movable bracket (44) is fixed with a guide sleeve (410), and the bottom of the fixed bracket (1) is equipped with a guide rail (411).

3. The positioning device for circuit board processing according to claim 2, characterized in that, The guide sleeve (410) and the guide rail (411) are sliding fit components, and the electric push rod (41) and the fixed bracket (1) are fixedly connected.

4. A positioning device for circuit board processing according to claim 1, characterized in that, The guide mechanism (5) includes a metal bracket (51), the top of which is rotatably connected to a rotating frame (52) via a rotating shaft. A limiting sleeve (53) is fixed to the top of the metal bracket (51), and a limiting hole (54) is opened inside the limiting sleeve (53). A limiting rod (55) is fixed to the side of the centering positioning frame (49) near the limiting sleeve (53).

5. A positioning device for circuit board processing according to claim 4, characterized in that, One end of the rotating frame (52) is rotatably connected to the transmission frame (47) via a rotating shaft, and the metal bracket (51) and the mounting frame (2) are fixedly connected.

6. A positioning device for circuit board processing according to claim 5, characterized in that, The size of the limiting hole (54) is adapted to the size of the limiting rod (55), and the mounting bracket (2) has a threaded hole inside.

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